Color
#633366
#633366rgb(99, 51, 102)hsl(296, 33%, 30%)oklch(0.403 0.1 325)Colors that go with #633366
Charcoal, Sea Green and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #633366: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
complementaryshippedSea Green sits directly opposite #633366 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #633366 in 4 real palettes, including Lenovo's brand system and Wells Fargo's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #633366: 5 real palettes, including Hinge's brand system and HP's brand system, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #633366: 4 real palettes, including Macaron and Nursery, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #633366 in 4 real palettes, including Blush and Datadog's brand system, as that palette's text colour.
Teal #008080
split-complementshippedTeal is a split-complement of #633366: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Midnight Blue #191970
shipped3 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #633366, as the accent.
Real palettes that use #633366
Tints & shades
Harmonies
Contrast
| #633366 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.56:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.2:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #633366 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#633366 reads as cool, muted, dark. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #633366 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/633366-c19fbf-9ccb62-2d1f28-ede9f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md